*{
     padding:0; 
     margin:0;
}
li {
    list-style: none;
}
a {
    text-decoration: none;
    color: #333333;
}
.px2rem(@name, @px){
    @{name}: @px / 75 * 1rem;
}

.webkit{
    display: -webkit-flex;
    display: -moz-flex;
}

.tanchuang{
    position: absolute;
    .px2rem(top,88);
    right: 0;
    display: none;
    ul{
        .px2rem(width,100);
        .px2rem(height,200);
        border: 1px solid #000000;
        li{
           .px2rem(height,50);
           color: #FFFFFF; 
           text-align: center;
           .px2rem(line-height,50);
           background: #000000; 
        }
        .active{
            background: #ccc;
            color:#000;
        }
    }
    
}      